<template>
    <div class="progress-circle">
        <svg :width="radius" :height="radius" viewBox="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">
            <circle class="progress-background" r="50" cx="50" cy="50" fill="transparent" />
            <circle class="progress-bar" r="50" cx="50" cy="50" fill="transparent" :stroke-dasharray="dashArray" :stroke-dashoffset="dashOffset" />
        </svg>
        <slot></slot>
    </div>
</template>

<script type="text/ecmascript-6">
export default {
    props: {
        radius: {
            type: Number,
            default: 100
        },
        percent: {
            type: Number,
            default: 0
        }
    },
    data() {
        return {
            dashArray: Math.PI * 100
        }
    },
    computed: {
        dashOffset() {
            return (1 - this.percent) * this.dashArray
        }
    }
}
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
@import "~common/stylus/variable"

.progress-circle
    position: relative
    circle
    stroke-width: 8px
    transform-origin: center
    &.progress-background
        transform: scale(0.9)
        stroke: $color-theme-d
    &.progress-bar
        transform: scale(0.9) rotate(-90deg)
        stroke: $color-theme
</style>